Hazrat Umar (may Allah be pleased with him) said to Hazrat Ka’b, "O Ka’b, you have frightened us." Hazrat Ka’b replied, "Yes, indeed. Allah Almighty will gather all creation on one land. On that day, Hell will take three breaths. After the first breath, no eye will have any tears left, to the extent that blood will begin to flow. The second time, all people will fall to their knees and plead, 'O Lord, myself, myself,' even Allah’s friend Hazrat Ibrahim (peace be upon him). And the third time, O Umar! Even if you have the deeds of seventy prophets, you will still be afraid until you know which group you belong to."